在 swift 中点击按钮时将单元格添加到 Table 视图

Question

我必须在我的应用程序中查看。 mainMeasurements 和 historyMode。在主测量中，用户可以拍照并测量距离、速度和时间。我需要该应用程序将在点击重置按钮时以 historyMode 将测量数据保存在 TableView 中（就像 phone 应用程序中的最近）。我已经准备好数据并对其进行了评论。它应该将单元格添加到 table 带有图像和“lastTop...”数据的视图，并显示旧的

class mainMeasurements: UIViewController, CLLocationManagerDelegate, UINavigationControllerDelegate, UIImagePickerControllerDelegate {

var speedArray: [String] = []
var arrayOfImages: [UIImage] = []
var distanceArray: [Int] = []

var lastTopDistance: String?
var lastTopSpeed: String?
var lastTopTime: String?

@IBOutlet weak var takePhoto: UIButton!   
@IBOutlet weak var mountainImage: UIImageView!     
@IBOutlet weak var speedLabel: UILabel!
@IBOutlet weak var distanceLabel: UILabel!
@IBOutlet weak var timerLabel: UILabel!
@IBOutlet weak var resetButtonLabel: UIButton!

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        if segue.identifier == "switchToHistory"{
//            let historyModeVc = segue.destination as! historyMode
//            historyModeVc.memoryPhoto = arrayOfImages.last
//            historyModeVc.historySpeedLabelMM = lastTopSpeed
//            historyModeVc.historyDistanceLabelMM = lastTopDistance
//            historyModeVc.historyTimerLabelMM = lastTopTime
        }
    }

@IBAction func resetDidTouch(_ sender: UIButton) {
        arrayOfImages.append(mountainImage.image!)

        self.lastTopSpeed = self.maxSpeed
        self.lastTopDistance = self.distanceLabel.text
        self.lastTopTime = self.timerLabel.text
        self.arrayOfImages.append(self.mountainImage.image!)
        
    }
 }

和

import UIKit

class historyMode: UIViewController {
    
    var memoryPhoto: UIImage?
    var historyTimerLabelMM: String?
    var historySpeedLabelMM: String?
    var historyDistanceLabelMM: String?

    override func viewDidLoad() {
        super.viewDidLoad()
//        historyDistanceLabel.text = historyDistanceLabelMM
//        historySpeedLabel.text = historySpeedLabelMM
//        historyTimerLabel.text = historyTimerLabelMM
//        historyImage.image = memoryPhoto
        
    }

Answer 1

如果我没记错的话，您是在询问如何在 table 视图中显示您的数据？

您可以像这样解析您的数据并将其传递给 historyMode:

struct YourData {
    var arrayOfImages: [UIImage]
    var lastTopDistance: String?
    var lastTopSpeed: String?
    var lastTopTime: String?
}

创建自定义单元格：

class CustomCell: UITableViewCell {
    override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
        super.init(style: style, reuseIdentifier: reuseIdentifier)
        
        // configure your cell UI
    }
    
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    func set(with data: YourData) {
        // initialize your properties with the data you provide
    }
}

使用 historyMode 注册您的自定义单元格并将您的数据传递给自定义单元格：

var yourDataArray: [YourData]!

override func viewDidLoad() {
    super.viewDidLoad()
    tableView.register(CustomCell.self, forCellReuseIdentifier: "CustomCell")
}

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "CustomCell", for: indexPath) as! CustomCell
    let yourData = yourDataArray[indexPath.row]
    cell.set(with: yourData)
    return cell
}

Answer 2

向数据源添加新元素并使用 NotificationCentre 在 historyMode

中调用 tableView.reloadData()

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